Blue-green algae are colored prokaryotes that can be unicellular or can form colonies of cells, but they are not truly multicellular. This algae species is autotrophic, needs sunlight, and performs photosynthesis. Are blue-green algae plants?

a yes, because they are not multicellular or eukaryotic
b yes, because they are autotrophic and need sunlight
c no, because they are autotrophic and need sunlight
d no, because they are not multicellular or eukaryotic
need help pls

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.

Which nutrient tends to cycle within a single ecosystem?